·Ever wondered whether small retailers in developing countries are leaving money on the table by not having enough change? – research by Beaman, Magruder and Robinson suggests they are, summarized on the IPA website.

·Systematic review of the effectiveness of agricultural interventions to improve nutritional status in developing countries in the BMJ (via @rovingbandit).

·David Brooks argues for controlled experiments to be injected throughout government based on a new book by Jim Manzi, also reviewed more critically here by Eric Posner.

As always, we post more on twitter – follow David (@dmckenzie001) and Berk (@BerkOzler12)